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S7-1500 big difference in load memory in resources and in online

Created by: ld22 at: 6/3/2016 10:26 PM (1 Replies)

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6/3/2016 10:26 PM	Rate (0)
ld22 Posts: 19 Rating: (0)	Hello! I have some little issue with my current project. Issue is about load memory in offline project it was showing 81 % of my 4 MB card (before commisioning). Now I downloaded program on site and I see that is 99,2 % of load memory how it is possible ? I used option "format card" from TIA and downloaded again and still there is almost full PLC. Can somebody explain me this a little bit ? BR, Lukasz Dobosz
ld22 Posts: 19 Rating: (0)
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6/6/2016 8:28 AM	Rate (0)
AutoGen_405229 Experienced Member Joined: 2/18/2013 Last visit: 3/12/2024 Posts: 102 Rating: (23)	The display of the memory load in the program information is an offline display in STEP 7 (TIA Portal) and only shows the memory requirement of the program in the project. ... Furthermore, not only the program is stored on the memory card, but also the device configuration. In addition, there might be other data on the SIMATIC Memory Card like recipes, data logs, HMI backups and other files which were copied to the memory card via the web server of the CPU or offline in the explorer. This description is an excerpt from a more complete explanation given in the following FAQ: https://support.industry.siemens.com/cs/ww/en/view/107108015 There you find other hints how to find out the right Memory Card size for your application.

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